snow April 23, 2017 11:50 am web pic monrovia shot US & World Videos 2:31 Billerica police sergeant killed in crash honored at funeral 2:05 MIT monitors pair of opposing protests on campus 3:41 Cool air to linger over Boston into the weekend 2:01 Remembering Billerica police Sgt. Ian Taylor 3:17 Cooling back down, weekend turns wet in Boston